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    One-third of the area covered with green trees. About seventy percent of the trees been planted. A. are; have B. is; has C. is; have D. are; has 【查看更多】

     

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    One-third of the area _____ covered with green trees. About seventy percent of the trees _____ been planted.

       A. are; have           B. is; has           　 C. is; have           　 D. are; has

     

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    One?third of the area__________covered with green trees.About seventy percent of the trees

    __________been planted.?

    A.are; have            B.is; has                C.is; have                     D.are; has

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